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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Dietz; Tim
Address:
Cedar Hill, TX
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
6568490 Method and apparatus for fabricating rotary cone drill bits May 27, 2003
A method for manufacturing drill bits in segments, using a single key which is nowhere concave in its axial profile to position all three segments together for welding; and drill bits so made.










 
 
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